The California Highway Patrol is putting extra officers on the state’s freeways to focus on speed limit enforcement and watch for all signs of impaired driving starting Friday and continuing through Christmas, authorities said.

“It’s all of California,” said CHP Officer Mike Martis in a phone interview from Sacramento. “There’s a focus to each one of these (enforcement efforts). With this one, it’s going to be speed enforcement, but we’re looking for drunk drivers and people traveling for the holidays that break down and need assistance.”

The Christmas Maximum Enforcement Period is set to start at 6 p.m. Friday and conclude at 11:59 p.m. Dec. 25, the CHP said.

Martis said an officer can pull over drivers for going “a mile over” the speed limit.

“The officer has to use his or her discretion in how the traffic is moving,” Martis said. “Technically, yes, it’s a violation. The officer chooses to stop or not stop that particular vehicle. We also look at traffic patterns … there is no set limit as far as, ‘Do you stop them at 1 or 2 miles over or 5 miles over?’ There’s a little bit of flexibility.”

While the CHP focuses on enforcing the speed limit and finding impaired drivers, the agency will use all available officers.

Martis did not have the total number of officers working on the holiday.

“Every available officer will be working during that maximum enforcement period. Hopefully we will be a deterrent to those that are driving. It would be nice to see zero fatalities this weekend … anytime really but in particular during this maximum enforcement.”